Anvil

a heavy iron block with a smooth face, frequently of steel, on which metals, usually heated until soft, are hammered into desired shapes.

anything having a similar form or use.

the fixed jaw in certain measuring instruments.

Also called anvil cloud, anvil top. Meteorology . incus ( def. 2 ) .

a musical percussion instrument having steel bars that are struck with a wooden or metal beater.

Anatomy . incus ( def. 1 ) .

noun

converter , forge , smithy , stithy